<h3><u>Answer;</u></h3>
Both aldehydes and ketones can hydrogen bond with water molecules. ethanal has a higher BP than ethane ketones are polar molecules
<h3><u>Explanation;</u></h3>
- An aldehyde differs from a ketone by having a hydrogen atom attached to the carbonyl group, which makes aldehydes very easy to oxidise.
- Ketones lack hydrogen atom and are resistant to oxidation and are only oxidised by powerful oxidising agents which have the ability to break carbon-carbon bonds.
- <em><u>Both aldehydes and ketones are polar molecules because of the presence of the carbon-oxygen double bond, which means they can form hydrogen bonds with water molecules</u></em>.
F- Fluorine only forms a single bond.
Fluorine has five electrons in its p-orbital. By gaining one electron from the single bond,. Fluorine would then be a stable stony with 8 valence electrons.
Answer:
c) Normal
Explanation:
Reflection is a phenomenon typical of light wave; it occurs when a ray of light hits the interface between two mediums, and bounces off back into the original medium, at a certain angle.
The direction of the reflected ray is determined by the law of reflection, which states that:
1) The incident ray and the reflected ray, together with the normal to the interface (the perpendicular to the interface), all lie within the same plane
2) The angle of incidence is equal to the angle of reflection:
where
is measured as the angle between the incident ray and the normal to the interface
is measured as the angle between the reflected ray and the normal to the interface
Are found along volcanic island arcs
Answer:
The water makes your individual hairs stick close together. ... When more light is absorbed by your wet hair, less light gets reflected back to your eyes. The result is that your hair appears darker than when it's dry.